Timeline for Is the category of tangles that includes, X, Y, and Lambda a free Frobenius braided category?
Current License: CC BY-SA 3.0
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| Oct 25, 2011 at 13:21 | comment | added | Noah Snyder | Sorry I didn't see your reply until now. Shum's theorem says that the category of ribbon tangles is the universal ribbon category. My impression was that there was some technical reason why ribbon tangles were better behaved from this point of view than ordinary tangles, but I'm not totally sure on this point. | |
| Jul 25, 2011 at 23:08 | comment | added | Scott Carter | I am trying to track down a copy of Shum's paper now. It is in the nether zone of science direct and print journals at my school, but can you elaborate about the issue a bit more, Noah? | |
| Jul 24, 2011 at 20:37 | history | edited | Scott Carter | CC BY-SA 3.0 |
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| Jul 24, 2011 at 6:17 | comment | added | Noah Snyder | Typically ribbon categories are better behaved in this way than braided rigid monoidal categories (see Shum's theorem). I'd worry that the same issue would come up here. | |
| Jul 23, 2011 at 19:00 | history | asked | Scott Carter | CC BY-SA 3.0 |